<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
    PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- /fasttmp/mkdist-qt-4.3.5-1211793125/qtopia-core-opensource-src-4.3.5/doc/src/qtopiacore.qdoc -->
<head>
  <title>Qt 4.3: Qtopia Core</title>
  <link href="classic.css" rel="stylesheet" type="text/css" />
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="left" valign="top" width="32"><a href="http://www.trolltech.com/products/qt"><img src="images/qt-logo.png" align="left" width="32" height="32" border="0" /></a></td>
<td width="1">&nbsp;&nbsp;</td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a>&nbsp;&middot; <a href="classes.html"><font color="#004faf">All&nbsp;Classes</font></a>&nbsp;&middot; <a href="mainclasses.html"><font color="#004faf">Main&nbsp;Classes</font></a>&nbsp;&middot; <a href="groups.html"><font color="#004faf">Grouped&nbsp;Classes</font></a>&nbsp;&middot; <a href="modules.html"><font color="#004faf">Modules</font></a>&nbsp;&middot; <a href="functions.html"><font color="#004faf">Functions</font></a></td>
<td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">Qtopia Core<br /><small></small></h1>
<p>Qtopia Core is a C++ framework for GUI and application development for embedded devices. It runs on a variety of processors, usually with Embedded Linux. Qtopia Core provides the standard Qt API for embedded devices with a lightweight window system.</p>
<p align="center"><img src="images/qtopiacore-architecture.png" /></p><p>Qtopia Core applications write directly to the framebuffer, eliminating the need for the X Window System and saving memory. The Linux framebuffer is enabled by default on all modern Linux distributions. For information on older versions, see <a href="http://en.tldp.org/HOWTO/Framebuffer-HOWTO.html">http://en.tldp.org/HOWTO/Framebuffer-HOWTO.html</a>. For development and debugging purposes, Qtopia Core provides a <a href="qtopiacore-qvfb.html">virtual framebuffer</a>. It is also possible to run an application using the <a href="qtopiacore-vnc.html">VNC protocol</a>.</p>
<p><table width="100%" align="center" cellpadding="2" cellspacing="1" border="0">
<thead><tr valign="top" class="qt-style"><th>Getting Started</th><th>Reference</th><th>Features</th></tr></thead>
<tr valign="top" class="odd"><td><ul>
<li><a href="qtopiacore-architecture.html">Architecture Overview</a></li>
<li><a href="qtopiacore-install.html">Installation</a></li>
<li><a href="qtopiacore-running.html">Running Applications</a></li>
<li><a href="examples.html#qtopia-core">Examples</a></li>
</ul>
</td><td><ul>
<li><a href="qws.html">Classes</a></li>
<li><a href="qtopiacore-envvars.html">Environment Variables</a></li>
<li><a href="licenses-fonts.html">Font Licenses</a></li>
</ul>
</td><td><ul>
<li><a href="qtopiacore-pointer.html">Pointer Handling</a></li>
<li><a href="qtopiacore-charinput.html">Character Input</a></li>
<li><a href="qtopiacore-displaymanagement.html">Display Management</a></li>
<li><a href="qtopiacore-opengl.html">OpenGL</a></li>
<li><a href="qtopiacore-fonts.html">Fonts</a></li>
</ul>
</td></tr>
<thead><tr valign="top" class="qt-style"><th>Development</th><th>Porting</th><th>Optimization</th></tr></thead>
<tr valign="top" class="even"><td><ul>
<li><a href="qtopiacore-qvfb.html">Virtual Framebuffer</a></li>
<li><a href="qtopiacore-vnc.html">VNC Protocol</a></li>
<li><a href="qtopiacore-testingframebuffer.html">Testing the Linux Framebuffer</a></li>
<li><a href="qtopiacore-crosscompiling.html">Cross Compiling Applications</a></li>
<li><a href="qtopiacore-deployment.html">Deploying Applications</a></li>
</ul>
</td><td><ul>
<li><a href="qtopiacore-differences.html">Porting Qt Applications to Qtopia Core</a></li>
<li><a href="qtopiacore-porting-device.html">Porting Qtopia Core to a New Architecture</a></li>
<li><a href="qtopiacore-porting-operatingsystem.html">Porting Qtopia Core to Another Operating System</a></li>
</ul>
</td><td><ul>
<li><a href="qtopiacore-performance.html">Performance Tuning</a></li>
<li><a href="qtopiacore-features.html">Fine-Tuning Features</a></li>
<li><a href="qtopiacore-accel.html">Adding an Accelerated Graphics Driver</a></li>
</ul>
</td></tr>
</table></p>
<p><table width="100%" class="annotated" cellpadding="2" cellspacing="1" border="0">
</table></p>
<p /><address><hr /><div align="center">
<table width="100%" cellspacing="0" border="0"><tr class="address">
<td width="30%">Copyright &copy; 2008 <a href="trolltech.html">Trolltech</a></td>
<td width="40%" align="center"><a href="trademarks.html">Trademarks</a></td>
<td width="30%" align="right"><div align="right">Qt 4.3.5</div></td>
</tr></table></div></address></body>
</html>
